Motion in A Straight Line

Question: The distance between two particles is decreasing at the rate of 6 m/sec. If these particles travel with same speeds and in the same direction, then the separation increase at the rate of 4 m/sec. The particles have speeds as

1) 5 m/sec ; 1 m/sec

2) 4 m/sec ; 1 m/sec

3) 4 m/sec ; 2 m/sec

4) 5 m/sec ; 2 m/sec

Solution:

Explanation: Explanation

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